Jump to content
NorthernAbGuy

Anyone *casting* Aluminum Molds?

Recommended Posts

Hey All.  I am making extremely low numbers of lures, only for myself.  It started because I wanted to try out Gel-A-Lure to do some of my favorite shapes in some different color combinations.  After making some plaster molds, I found out I needed aluminum molds for Gel-A-lure.  So basically, I just took my PoP molds out to the garage and reproduced them into aluminum using casting sand.  Anyone else doing this?  I don't have any experience creating molds with a milling machine or CNC stuff, and basically all I need is my foundry sand, some wooden frames and my little propane fired furnace.  I use recycled aluminum, good stuff that I have saved up from having worked in the motorcycle industry.  It really is a low cost way of making things, I made almost every component myself, from the furnace, crucible, and the cope and drag mold frames.  Anyone else out there CASTING their own aluminum molds?  So far I am only making one peice/open face molds.  I am about to try some of my own designs, and may progress to 2 peice molds using lost foam in the near future. 

Link to comment
Share on other sites

I pretty much got started by reading the kind of stuff I could find on the Internet, and going from there. I read some of the foundry books that are out there, I did some silver smithing and casting pewter a while ago.  I've melted aluminum on the table top with MAP gas in a coffee can furnace plenty of times for small stuff.  I always wear welding gloves, long pants, steel toes, long sleeves and safety glasses.  I'm also doing this outside, other than preparing the molds.  I will try & get pics next time I fire up the furnace.  It looks pretty cool at night with a foot of flame coming out of the furnace, red hot crucible, and shiny quicksilver aluminum being poured into molds. 

Link to comment
Share on other sites

   What is the finish like on your baits? I did some foundry work in my senior yr of HS while taking Industrial Arts. I made a circled peace sigh and remember it took a lot of work with a file and special sandpaper for metals to get a shiny finished piece. After pouring the molten metal and cooling - the surface was dull and had some small pits.

   Now I wonder if the mold was machined correctly and defect free, would the baits poured in the final alum mold be smooth?

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...


×
×
  • Create New...
Top